Menu
Buy online & pick up in stores all delivery options same day delivery include out of stock 2'2'x12' runner 2'2'x14' runner 2'3'x9' runner 2'6'x3'4' Under 1.5' x 2.5' 1.5' x 2.5' 2' x 3' 2' x 4' 3' x 5' 4' x 6' 5' x 7' 6' x 9' 7' x 10' 8' x 10' over 9' x12' 2' to 5' round/square 6' to 9' round/square over 9' round/square under 6' length runner 7. 12 Compartment Clear Small Parts Compartment Box 13-1/8' Wide x 2-5/16' High x 9' Deep, Polypropylene Frame, 2-1/16' Bin Width x 2-1/32' Bin Height x 4-7/32' Bin Depth. MSC# 00068197 Durham (LP12-CLEAR).
S & M Electro-Tech has developed a complete line of new replacement speakers engineered to fit in collector cars and function properly with OEM radios. Our speakers are manufactured in the USA using compact high energy neodymium (NEO) magnets that allow these speakers to fit where others won't. Neodymium magnets (commonly referred to as super magnets) are 1/10 the physical size ofround ceramic magnets found on most modern speakers but provide the same or higher field strength. Most of our speakers are true 8 ohm impedance and are fully compatible with 10 ohm Delco speakers. Many have whizzer cones for improved high frequency response and fabric or sanoprene rubber surround and larger spiders for improved low frequency response. They work exceptionally well with original Delco, Ford and Mopar radios made from the 40's through the mid 70's and will make your classic radio sound better than new. Available in most popular sizes used with car radios from the late 1930’s through the mid 1970’s. Most of our speakers can handle the added power produced by our AM/FM conversion radios and modern car radios. Our speakers carry a 5 year warranty against manufacturing defects.
Compare our replica 4 x 10 speakers to original Delco slim line speakers used in many 1960's GM products. The original 'Delco Special Rectangle' is on the top left, our replacement speaker is on the top right. The bottom left speaker is our 4 x 10 Oval replacement. The 2 middle 4 x 10 oval speakers are original Delco 4 x 10 oval speakers. The lower right 4 x 10 is a common 4 ohm replacement speaker sold by many auto parts supply stores and restoration parts suppliers. The magnet on our speaker has more the twice the field strength of the ceramic magnet shown on the lower right speaker and 4 times the strength of the original alnico magnets used on the original Delco speakers.
Original Delco 4x10 Special Rectangle Our 4x10 Replacement
Our 4x10 Oval 1964 - 67 Pontiac GTO 1968-69 Corvette Kick Panel Generic 4 ohm speaker
Note: Many replacement speakers now sold by the discount stores, auto parts stores and mail order restoration parts houses are labeled as '4 to 8 ohm compatible' and are in fact 4 ohm speakers. These speakers can damage the older transistor radios. 4 ohm speakers will measure around 3.2 ohms with a DC ohmmeter. An 8 - 10 ohm speaker will measure around 7.4 ohms with a DC ohmmeter. The DC resistance is the critical number for the Delco radios as the output transistor is in series with the speaker. A properly operating Delco radio should have 1.5 volts DC across the speaker voice coil. A 4 ohm speaker will draw twice the current of an 8 ohm and cause the amplifier transistor (the half dollar size device mounted to the black finned heat sink on the back of a Delco radio) to run very hot. The speaker cone should be displaced in an upward (away from the magnet) direction about 1/8' when a Delco radio is turned on. If the cone moves down toward the magnet, the speaker leads need to be reversed. Ford and Chrysler radios of the period used the same type of germanium output transistors as the Delco radios and also require 8 ohm speakers. However, Ford and Chrysler radios ran with 0 to 1 volt DC offset on the speaker depending on the radio model and vintage. Many will not deflect the cone when turned on like the Delco radios.
Warning: Never run 4 ohm speakers on any vintage car automobile radio using transistor output circuits.
If you don't know what type of output circuit your radio uses, call us.
Re-cone speakers: Many people call and ask if we can re-cone their original speaker. Sorry, but the answer is no. Many re-coned speakers do not sound good or function right. The old alnico magnets are becoming weak with age and most re-coners do not have the equipment to re-magnetize the magnet. Also, in many cases the frame and voice coil gap cannot be cleaned and reconditioned for the speaker to perform well. After years of having original speakers re-coned with very mixed results, we decided to manufacture new speakers that would outperform the originals, fit in the original locations, and work with the original radios at a cost lower than recone.
To orderany of our speakers, just call us. We will be happy to help you in the selection of the proper speaker for your application. We accept VISA & MC for payment and ship same day US Priority Mail.
In the US, you can call toll free @ (877)780-2861. Outside the US, call 1-763-780-2861. We are open from 9:00 AM to 6:00 PM Monday thru Friday- Central Time.
Deeper 2 4 7 X 6
Available Speaker sizes:
3 1/2' Round - Used in late 60's and early 70's Cadillac, early 70's Olds, Pontiac, Buick and late 60's, early 70's Mopar front 3 speaker dash locations for stereo radio/tape applications. The mounting ears can be cut off and the speaker held in with the wire clips used on many GM applications(See photo below). We can supply a magnet filler block on request for cars using the Delco wire clip mount.
Note: When used with modern high power radios, this speaker should be connected with 50uf 50volt non-polar coupling capacitors in series to prevent over excursion of the cone at very low frequencies. Some factory GM and all Mopar applications using these speakers have the crossover capacitors installed in a box under the dash. It is even more important when installed with our conversion radios or modern after market radios with high power amplifiers.
Price - $78.95 pair 8 - 10 Ohm Size: 3 3/8' dia. 1 1/2' deep. 3 3/4' to 4 1/4' mounting center.
Cadillac spring clip mounting
3 1/2' Square - Used in late 60's Cadillac, late 60's and early 70's Mopar front 3 speaker dash locations for stereo radio/tape applications.
Price - $78.95 pair 8 - 10 Ohm Size: 3 1/2' dia. 1 3/8' deep. 2 3/4' mounting centers.
.
4 1/2' Pin cushion - Used in Volkswagen Beetle, Porsche, some late 50's Lincoln applications. Used in our Dual6x9HQ and Dual4 x10HQ 'Special Rectangle' and Dual4x10HQ Mopar speakers. This is a excellent speaker for use in concealed locations due to its small size, light weight, and excellent frequency response and power handling abilities. Power rating 40 watts RMS
Price - $36.95 each Both 4 ohm and 8 ohm available Size: 5' dia. 1 7/8' deep. 3 5/16' mounting centers.
5 1/4' Pin cushion - Used in late 60's and early 70's Ford, Mercury, Lincoln MK III's rear speaker stereo applications. Companion to our 4 x 8 speaker used in the doors of these cars. Also used in some 60's Porsche 356's and VW Karmen Ghias.
Price - $49.95 each 8 - 10 Ohm Size: 6' dia. 2 1/8' deep. 3 3/4' mounting centers.
6 ' Pin cushion - Used extensively in GM applications mounted in the center of the rear seat cushion, starting with the 1958 Impala , Pontiac, Oldsmobile, etc. This speaker will greatly improve the rear seat sound of your original GM Radio, especially if used with the Stereo radios or reverb units. This speaker is also correct for 1960's VW bus applications.
Price - $49.95 each 8 - 10 Ohm Size: 6 1/8'dia. 2' deep. 4 3/8' mounting centers.
7 ' or 7 1/2' Pin Cushion - Used extensively in Mopar dash applications from 1946-1948, and various other years up through 1965. Also used inside 1940 & 41 Ford box radios. This speaker uses a 11ga laser cut steel mounting ring that matches the mounting pattern of the original 7' speaker exactly. Mounted on the ring is our high quality 6' pin cushion speaker. We also install a fabric dust screen over the face of the entire assembly.
Price - $59.95 each 8 Ohm Size: 7'dia. 2 1/8' deep. Non-square mounting centers. 7' model - 4 1/4' x 5 3/4'. 7 1/2' model - 4 5/8' x 6 3/16'
Also available with 7 1/2' ring size and mounting centers for early 1940's Cadillac box radios.
Deeper 2 4 7 X 6
8' Pin cushion - Used with tube style radios in the 40's box radios and 50's Olds, Pontiac, and early Corvette through 1957.
Price - $49.95 4 Ohm Size: 7 1/2' Dia, 2 7/16' deep. Mounting centers 5 3/16'
4 x 6' Oval - Used in the dash and kick panels of many GM cars with the factory 'Stereo' radios from the mid 60's through the mid 70's. Pictary 2 1 3. This speaker will directly replace the rare 65, 66, 67, etc., Chevrolet kick panel speakers and rare Chevelle dash pad speakers with the twisted magnet.
Price - $78.95 pair - $39.95 each. 8 - 10 Ohm Size: 4'W x 6 1/8'L. 1 1/2' deep. 3' x 5 1/4' mounting centers - other combinations.
Price - $89.95 pair with Chevelle angle brackets installed. Does NOT include the stamped steel brackets that the speakers mount on.
Our 4 x 6 speakers are available with angle brackets for direct bolt-in on 1970 - 72 Chevelle/El Camino/Monte Carlo dash applications.
Original Delco 4x6 dash speakers for Chevelle shown on top. Notice the difference in the magnet size and location between the left and right speakers for instrument panel clearance. If you look close, you will also notice the angle brackets are in different positions on the driver side verses the passenger side speaker.
